| 摘要 |
<p>PURPOSE:To provide a dustproof gel sheet which is produced by laminating silicone gel layers having a specific post-curing penetration on both sides of a reinforcing sheet, thus can simplify the operations for exchanging the filters in a narrow space to finish the task in a short period. CONSTITUTION:This sheet is produced by laminating silicone gel layers of 20-130 post-curing penetration 1 on both sides of a reinforcing sheet 2 (preferably a mesh-work reinforcing material made of polyester and cotton fibers). The silicone gel layer is preferably a cured product of an addition type liquid silicone gel composition or a condensation type liquid silicone gel composition, and preferably contains 0.5wt.% or less of low-molecular siloxane having 10mmHg or higher vapor pressure at 200 deg.C.</p> |
